Press



3 Sheets-Sheet;` 1.

(No Model.)

J. H. BRINKOP.

Press,

No. 242,258. Patented May 31,1881.

Inventor: C Q; 7?

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3 Sheets-Sheet 2.

(No Model.)

J. H. BRINKUP.

Press.

Patented May`31,1s81.

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UNITED STATES PATENT EETCE,

JOHN H. BRINKOP, QUINCY, ILLINOIS.

PRESS.

SPECIFICATION forming' part 0f :Letteni Patent No. 242,258, dated May31, 1881.

Application tiled Api-i123, 1881. (No model.)

i the size of the article which is to be pressed To all whom it mayconcern:

Be it known that I, J onN HENRY BRINKOR. of Quincy, in the county ofAdams and State of Illinois, 'have invented a new and useful Im- Iprovement in Presses; an d I do hereby declare that the following is afull, clear, and exact description of the same.

My invention relates to presses of that class in which tobacco, clay, orlike materials are molded and pressed.

The invention is intended for presses more particularly adapted to beoperated by a footlever, although parts of the'invention are capable ofbeing used in connection with other instrumentalities for applying powertllereto.

The object of my invention is, primarily, to secure adjustability in themachine for different sizes of articles to be formed therein, and inconnection therewith to secure sharp angles and corners in the articlepressed.

I have hereinafter fully described the best practical means known to meof carrying out my invention, and have pointed out in the claims theprinciple of construction and the specially improved details in which myinvention consists.

In the accom pan ying drawings, Figurel represents a side velevation ofmy improved press. Fig. 2 is a horizontal sect-ion upon line a: of Fig.l. Fig. 3 is a vertical section from front to rear of the machine, asindicated by line y y of Fig. 2.

The machine shown is adapted to be operated by a treadle. The supportingparts of the machine consist of two side frames, T T, connected to eachother by transverse rods and by the table-top, as hereinafter moreparticularly described. This top, which is marked Q, rests upon innerflan ges, l l, of the side frames, to which it is firmly secured bybolts and nuts 2 2. Upon the top of the table thus formed are set sidesN N, extending from front to rear.

These sides are held adjustable to the top of the table by means of fourthreaded bolts, 3 3, which pass through horizontal anges 4 in the saidsides, and through transverse slots 5 in the top of the table, to whichtop these si'des are thus adj ustabl y connected by means of thumbnuts 6upon the lower ends of the threaded boltsB, so that by loosening thesenuts the sides may be set in or out to adjust the box to therein.

Within the box is provided an apron, A, hinged to the table-top on thefrontline of the press-box M, located in the rear of the table, as shownmore clearly in Fig. 3. It will be understood that the apron, whenlowered within the sides N, rests in aninclined position upon lugs 7 7,and forms with the sides an inclined chute7 in which the material to bepressed is fed to the press-box; but when turned up in a verticalposition the same apron A forms the front wall of the said press-box.

In order to preserve the accuracy of the corners special construction ofthe hinged edge of the apron is required. This special constructionconsists of a ange, 8,'on the hinged edge of the apron, formed on a truecurve and tted accurately in a slot of corresponding` shape madetransversely of the table. This slot in Fig. 3 is indicated at 9, andthe curved iiange is formed (as shown in dotted lines in Fig. 3) so thatwhen the apron is raised vertically it forms with the bottom of thepress-box an exact right angle in transverse section.

The apron is held within the slot upon the rounded rear edge of thetable bordering upon the slot by means of the curved fiange heretoforedescribed and a plate, n, having lugs 10, which enter holes in the tableand embrace, in connection with the flange, round bearings formed in thetable by the slot 9 and the holes l1. The platenl is fixed to the underside of the apron A by suitable screws.

Any other convenient way of hinging the apron to the top ofthe table maybe used 5 but it is necessary, in order to form sharp corners upon thepressed article, that the apron, when brought up to vertical position,should form a sharp angle with the bottom ofthe press-box, also that thejoint between the apron and box should be always tight.

The ends of the press-box are formed by two sliding blocks, E E, whichmove in guides between the ends of the side plates, N, and the rearwall, R. These blocks E rest upon the bottom of the press-box, (which'isformed by the tabletop,) and are moved by levers D D,

lpivoted in the sides N. These levers have horizontal movement, andtheir front ends are connected to a central sliding block, c, which ICOmoves from front to rear in a slot, 12, inthe center of the table, saidconnection being formed by means of bars 13, provided with series ofholes for adjustment, and attached to the central block by means of athumb-screw, C.

It will be obvious from an inspection of the parts as shown in Fig. 2that when the block c is pushed back in its slot the forward ends of thelevers D will be drawn inward and the blocks thrown out, and that thereverse movement will throw the blocks inward to the pressbox.

The slot 12 permits the block c to slide to the front slightly past theline drawn from the pivots 14, which connect the bars 13 to the leversD, so that when the block e is drawn to its front limit the blocks E arelocked in position. The parts must be so adjusted that when the blocks Eare thus locked in place their inner surfaces, which form the ends ofthe press-box, will bear against the ends of the plunger B, the lowerend of which, in its upward movement, remains a little below the upperends of blocks E.

The guides for the blocks E, heretofore referred to, are formed by upperand lower flanges, 15, on the rear ends of the side pieces, N.

In addition to their oitice of moving and locking the blocks E, thelevers D perform another function-that of locking the apron A invertical position against the blocks E and the plunger B. This isaccomplished by means of inclined lugs 16, formed on the levers D andprojecting through the sides N into the path of the apron A. When theblock c is pushed forward and the end blocks, E, are thrown out theselugs 16 are withdrawn and the apron may be raised. The apron is thusraised in operating the machine when the levers and end blocks are inthe position last described, and this elevation of the apron serves todeliver and press the material previously placed upon it into thepress-box, where it is securely locked and further pressed upon the endsby the backward movement of the block c, which, as heretofore described,by the same movement throws in the end blocks and locks the apron. Therear edges of these locking-lugs 16 bear against beveled edges upon theunder side of the apron A, thereby pressing the apron irmly against itsbearing-surfaces.

`The next operation in order is performed by the plunger B.A This isfixed to a cross-bar, b, by means of a bolt and thumb-nut, 17. Thecross-bar b is pivoted upon the upper ends of arms G G, the lower endsof which arms are pivoted upon a cross-bar, II, carried in the ends ofarms l?, Xed upon the rock-shaftp. To this rock-shaft p is connectedtreadle-lever F, the connection being made adjustable by means of aset-screw, 27. The treadle-lever is braced upon the bar O by means of acurved arm, 1S, which is provided with a series of holes in its upperend, which passes through the treadle-lever, so that by means of a pin,19,

the position of the treadle-lever may be adjusted thereon.

The two parallel arms G are curved to the rear at their lower ends, andthe lever may be so set that the bar O may be thrown beyond the centerof p, and thereby lock the plunger B down upon the material to bepressed. This is done if it is desirable to retain the said materialunder compression. The ends of the cross-bar which supports the plungerB project beyond their bearings in the arms G and ride up and downagainst posts 20 on the top of the frame, said posts serving as guidesto prevent the cross-bar from moving too far to the rear, the apron whenraised serving as a front guide.

Therear wall, R, is connected to blocks r,

i' which slide from front to rear in guides 21 on the inside of the sideframes. They are held in position by thumb-nuts 22, the threaded boltsof which pass through slots in the blocks r.

It will be observed, therefore, that the pressbox may be enlarged ordiminished both by the adjustment ofthe sides N with the end blocks,

E, carried with those sides, and also by the adjustment of the rearwall, R, to front or rear.

The apron A may be removed and another smaller or larger substituted inits place, and

the same is true of the plunger B.

In order to remove from the press-box the article which has been pressedI provide a second plunger, 23, working snugly through an opening in thebottom of the press-box. It is carried upon a sliding block, 24, mountedupon the end of a crooked lever, 25, pivoted underneath the table. Theblock 24 slides upon a vertical guide, 26, fixed underneath the table,and its movement downward is limited by a shoulder on the guide, so thatthe upper end may, when the plunger is down, be always flush with thebottom of the press-box. The lever 25 is operated by a knob, K, workingvertically in the table and held up by a spiral spring, so that theplunger 23 is held down, except when the knob K is depressed. The knobis in position at the side of the table to be conveniently operated bythe workman standing in front ofthe apron.

The treadle-lever may be raised by any suitable spring.

The parts heretofore described may be constructed of wrought and castiron; but I do not limit myself in this respect.

IIavin g thus described my invention, what I claim as new, and desire tosecure by Letters Patent, isl 1. In a press, the combination of areciproeating plunger, movable end blocks, and a hinged apron formingthe front wall, substantially as described.

2. The combination of a reciprocating plunger, adjustable sides, and thehinged apron, substantially as described.

3. The combination, in a press,of the reciprocating plunger and theadjustable sides provided with levers and end blocks, said parts IOO IOS

IIC

IIS

acting in connection with the front and rear Walls of the press-box,substantially as described.

4C. The combination, with the reciprocating plunger and front and rearWalls, of the end blocks, E, levers D, sliding block c, andconnecting-bars, whereby the end blocks are operated, substantially asdescribed.

5. The combination, with the sides N, of the reciprocating plunger B,movableend blocks, and apron A, substantially as described.

6. The combination of the plunger B, sides N, hinged apron A, levers D,and locking-lugs 16, substantially as described.

7. The combination of the plunger B, sides and hinged apron, and theadjustable rear wall,

R, as set forth.

8. The combination of the plunger B, crossbar b, arms G, rock-shaftp,arms P, and treadlelever, substantially as described.

9. The combination .of the plunger B, and cross-bar b, and arms G, andthe posts 20, substantially as described. t

10. The combination of the plunger 23, lever 25, and depressing-knob K,substantially as 2 5 described.

In ltestimony whereof I. have signed my name to this specification inthe presence of two subscribing Witnesses.

JOHN H. BRINKOP.

Witnesses:

JOHN KIEFER. HENRY STEINKAMP.

